I don't believe we are talking about the same Grant family. These Grants descend as follows:
Generation 1. Benoni Grant b.Bet.1757-1759 b.Connecticut and Mary Burch b.08 Dec.1751 Stonington Connecticut.
Generation 2. William Grant b.abt.1776 Fort Edward,Washington Co;New York and Lois Burch b.Abt. 1776 New York
Generation 3. Billings Burch Grant b.June 17, 1810 Lake George,Warren Co:New York and Sarah Elizabeth Granger January 19, 1811 Fort Ann,Washington Co;New York
Generation 4. Brothers, Walter and Charles: Walter Grant b.Abt. 1837 Fort Edward,Washington Co;New York m. Delinda MEVIS b.April 21, 1842 New York
(MY GRANT CONNECTION) Charles Grant b.January 1857 New Berlin,Waukesha Co;Wisconsin m. Augusta Elizabeth Harvestine b.August 1859 Oconomowoc,Milwaukee,Wisconsin Charles and Elizabeth are my G-G-Grandparents, thier son (my G-Grandfather)Billings Birch Grant married (my G-Grandmother)Florence Rockwell, who was the daughter of Delinda's sister, (my G-G-Grandparents)Julia MEVIS b.September 01, 1845 New Berlin, Waukesha Co;Wisconsin m. Erwin G. Rockwell b.October 16, 1844 Stuben, New York (MY MEVIS CONNECTION)